Align Labe text to the left, use a colon (:) after the text.
Choose names for your controls that describe their purpose. Use a prefix to indicate their type.
Always use the default colors and fonts.
Use the correct control for the kind of interactivity and data that you wish to gather.
Align the OK and Cancel buttons near the lower right hand corner of your form.
Keep controls and labels aligned in (imaginary) columns.
Use tab indexes to allow keyboard-only navigation.

Define a property.

A property is an attribute of a control that changes either the appearance or changes its behavior.

What is the role of the Form Designer? What does it produce?

The Designer is a surface upon which to draw and layout the location of controls on a form.
It produces the code necessary for the GUI.